Finding the Fourth Proportional to 309,753.44, 427,518.27 and 202,415.48
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Solution
The fourth proportional to 309,753.44, 427,518.27 and 202,415.48 is: 279,371.60
Step by Step Solution
- Step 1: Write the proportion equation
309,753.44 : 427,518.27 = 202,415.48 : x - Step 2: Convert to fraction form
309,753.44/427,518.27 = 202,415.48/x - Step 3: Cross multiply
309,753.44x = 427,518.27 × 202,415.48 - Step 4: Simplify right side
309,753.44x = 86,536,312,681.15 - Step 5: Solve for x
x = 86,536,312,681.15/309,753.44 - Step 6: Final answer
x = 279,371.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.